| Abbreviation | Definition |
|---|---|
| ARA | Anti Rascist Actions |
| ARA | Any Responsible Adult |
| ARB | Arbitrator |
| ARC | Abject Reform Confinement |
| ARC | Addicts Rehabilitation Center |
| ARC | Alcohol Recovery Center |
| ARC | Awareness Responsibility Communication |
| ARCP | Annual Review of Criminal Procedure |
| ARCP | Arizona Rules of Civil Procedure |
| ARCW | Annotated Revised Code of Washington |
| ARD | Accelerated Rehabilitative Disposition |
| ARDC | Attorney Registration and Disciplinary Commission |
| ARDC | Attorney Registration Disciplinary Commission |
| ARELLO | Association Of Real Estate License Law Officials |
| ARF | Advanced Recovery Fee |
| ARF | Assault Recon Fighter |
| ARHJ | Advocates for Reproductive Health Justice |
| ARIA | Antagonism, Resonance, Invention, and Action |
| ARIEL | Austrian Review of International and European Law |
| ARIS | Attack Registry And Intelligence Service |